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4325 即將被4425材質(zhì)替代。

用于對鋼件和鑄鋼件進(jìn)行精加工到粗加工的 CVD 涂層硬質(zhì)合金材質(zhì)。該材質(zhì)能夠進(jìn)行連續(xù)切削，以及以高金屬去除率進(jìn)行斷續(xù)切削。應(yīng)用范圍廣泛的材質(zhì)。
用于中等到高切削速度下的切槽和車削工序。在管材的切斷工序中也有良好的表現(xiàn)。

K20-K25,

硬質(zhì)合金

CVD TiCN+Al2O3+TiN涂層

45#鋼 27SiMn GCR15 CF53 55# 65Mn

低碳鋼，長切屑C<0.25%，硬度<125HB;
低碳鋼，短切屑，易切鋼C<0.25%，硬度<125HB，C15, Ck22, ST37-2, S235JR, 9SMnPb28, GS38；
中碳鋼和高碳鋼C>0.25%，硬度<220HB(<25HRC),ST52, S355JR, C35, GS60, Cf53;
合金鋼和工具鋼C>0.25%，硬度<330HB(<35HRC),16MnCr5, Ck45, 緊固件用合金鋼21CrMoV5-7, 高硫中碳易切削鋼38SMn28 ;
合金鋼和工具鋼C>0.25%，硬度340-450HB(35-48HRC),軸承鋼100Cr6, 調(diào)質(zhì)鋼30CrNiMo8, 齒輪鋼42CrMo4, 彈簧鋼C70W2, 高速工具鋼S6525, 高錳鋼X120Mn12,鑄鋼;
鐵素體、馬氏體、和PH不銹鋼,硬度<330HB(<35HRC);
高強(qiáng)度鐵素體、馬氏體、和PH不銹鋼,硬度340-450HB(35-48HRC),高碳高鉻馬氏體不銹鋼X102CrMo17, 鑄造耐蝕不銹鋼G-X120Cr29;

灰鑄鐵 硬度120–290HB(<32HRC), GG15, GG25, GG30, GG40, GTW40,HT250;
低-中強(qiáng)度延性鐵 (球墨鐵)和蠕墨鑄鐵(CGI) 硬度130–260HB(<28HRC), GGG40, GTS35,QT250;
高強(qiáng)度延性鐵和奧氏體回火處理延性鐵(ADI) 硬度180–350HB(<43HRC), GGG60, GTW55, GTS65;

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